treechildren::-moz-tree-cell(message) {
    margin-left: 1.5em;
}
treechildren::-moz-tree-image(message) {
    list-style-image: url("chrome://ahi/content/transparent_triangle.png");
    margin-right: 0.3em;
}
treechildren::-moz-tree-image(message,updated) {
    list-style-image: url("chrome://ahi/content/yellow_triangle.png");
}
treechildren::-moz-tree-cell-text(message) {
    color: blue;
    text-decoration: underline;
    border: 1px solid transparent;
    cursor: pointer;
}
treechildren::-moz-tree-image(message,updated,hover) {
    cursor: pointer;
}
